The release of PHP 5.3 comes to me with mixed feelings. On one hand I love keeping software up-to-date. On the other, more important hand, there are some major changes that are for the better of PHP but do not work with my CMS platform of choice - Drupal. At this time Drupal 6 is still only compatible with PHP 5.2 and while I'm optimistic I feel there is not a rush to upgrade.